tumor growth

What are the Stages of Tumor Development?

Tumor development typically progresses through several stages:
1. Initiation: This is the first step where normal cells undergo genetic mutations due to factors like carcinogens, radiation, or inherited genetic defects.
2. Promotion: Mutated cells begin to multiply abnormally, but the growth is still reversible at this stage.
3. Progression: The tumor becomes malignant as cells acquire more mutations, leading to increased growth rate, invasion of nearby tissues, and the potential to metastasize.

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